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Sky Blue Aster

Symphyotrichum oolentangiense, Asteraceae

Zones
4–8
Layer
Herbaceous
Lifespan
Perennial
Growth
Moderate

Guild Roles

Pollinator AttractorBeneficial Insect HabitatPest Confuser

Growing Conditions

Sun

Full Sun (preferred)Partial Shade (tolerated)

Water

Moderate (established)High (seedling)

Soil pH

6 – 7.5

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

Decurrent False AsterBoltonia decurrens
Pollinator Sharing
Giant Cutleaf ConeflowerRudbeckia laciniata var. ampla
Shade ProvisionPollinator Sharing

Antagonistic Plants

Western Sky AsterSymphyotrichum ascendens

Similar aster species may compete for resources when planted too closely together in the same habitat.

Blue-stemmed GoldenrodSolidago caesia

Goldenrods release phenolic compounds that suppress growth of other Asteraceae, particularly asters in similar habitats

Uses

Functions

Fall Pollinator SupportMonarch Butterfly NectarNative Bee SpecialistBeneficial Wasp HostSeed Bird FoodLate Season Color

Edible Parts

FlowersYoung Leaves

Medicinal Uses

Anti-InflammatoryWound Healing

Common Questions

What zones does Sky Blue Aster grow in?

Sky Blue Aster grows in USDA hardiness zones 4 through 8.

What are good companion plants for Sky Blue Aster?

Good companions for Sky Blue Aster include Decurrent False Aster, Giant Cutleaf Coneflower.

Design guilds with Sky Blue Aster and see companion relationships visually.

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